Genesis 41:46

Observe here, I. The building of Joseph's family in the birth of two sons, Manasseh and Ephraim, Gen 41:50-52. In the names he gave them, he owned the divine Providence giving this happy turn to his affairs, 1. He was made to forget his misery, Job 11:16. We should bear our afflictions when they are present as those that know not but Providence may so outweigh them by after-comforts as that we may even forget them when they are past. But could he be so unnatural as to forget all his father's house? He means the unkindness he received from his brethren, or perhaps the wealth and honour he expected from his father, with the birthright. The robes he now wore made him forget the coat of divers colours which he wore in his father's house. 2. He was made fruitful in the land of his affliction. It had been the land of his affliction, and in some sense it was still so, for it was not Canaan, the land of promise. His distance from his father was still his affliction. Note, Light is sometimes sown for the righteous in a barren and unlikely soil; and yet if God sow it, and water it, it will come up again. The afflictions of the saints promote their fruitfulness. Ephraim signifies fruitfulness, and Manasseh forgetfulness, for these two often go together; when Jeshurun waxed fat, he forgot God his Maker. II. The accomplishment of Joseph's predictions.

— Matthew Henry's Concise Commentary (public domain)

Joseph was thirty years old when he stood before Pharaoh--seventeen when brought into Egypt, probably three in prison, and thirteen in the service of Potiphar. went out . . . all the land--made an immediate survey to determine the site and size of the storehouses required for the different quarters of the country.

— Jamieson-Fausset-Brown Commentary (public domain)